Cisco ME 3400 - Configuring Network Types for OSPF Interfaces

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Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
OL-9639-07
Chapter 35 Configuring IP Unicast Routing
Configuring OSPF
Beginning in privileged EXEC mode, follow these steps to configure routers that interconnect to
nonbroadcast networks:
On point-to-multipoint, nonbroadcast networks, you then use the neighbor router configuration
command to identify neighbors. Assigning a cost to a neighbor is optional.
Configuring Network Types for OSPF Interfaces
You can configure network interfaces as either broadcast or NBMA and as point-to point or
point-to-multipoint, regardless of the default media type.
An OSPF point-to-multipoint interface is defined as a numbered point-to-point interface with one or
more neighbors. On point-to-multipoint broadcast networks, specifying neighbors is optional. When you
configure an interface as point-to-multipoint when the media does not support broadcast, you should use
the neighbor command to identify neighbors.
Beginning in privileged EXEC mode, follow these steps to configure OSPF network type for an
interface:
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
router ospf process-id Configure an OSPF routing process and enter router configuration
mode.
Step 3
neighbor ip-address [priority number]
[poll-interval seconds]
Specify an OSPF neighbor with neighbor parameters as required.
• ip-address—Enter the interface IP address of the OSPF
neighbor.
• (Optional) priority number—Specify the router priority value
of the nonbroadcast neighbor associated with the IP address. The
range is 0 to 255; the default is 0.
• (Optional) poll-interval seconds—Specify a number that
represents the poll interval time (in seconds). This value should
be much larger than the hello interval. The range is
0-4294967295; the default is 120 seconds (2 minutes).
Step 4
end Return to privileged EXEC mode.
Step 5
show ip ospf [process-id] Display OSPF-related information.
Step 6
copy running-config startup-config (Optional) Save your entries in the configuration file.
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
interface interface-id Enter interface configuration mode, and specify the Layer 3 interface
to configure.
Step 3
no shutdown Enable the interface if necessary. By default, UNIs and ENIs are
disabled and NNIs are enabled.